全屏 tkinter canvas python

Question

Hello how can I make a full screen tkinter.Canvas ? Can you help me? This is my code:

import tkinter
import datetime
import sys
import os

uvodcanvas = tkinter.Canvas(width=400,height=200,bg="white")
uvodcanvas.pack()

tkinter.mainloop()

Answer 1

You need to make your main window full-screen, then configure the canvas to occupy the whole main window:

import tkinter as tk

root = tk.Tk()
root.attributes('-fullscreen', True) # make main window full-screen

canvas = tk.Canvas(root, bg='white', highlightthickness=0)
canvas.pack(fill=tk.BOTH, expand=True) # configure canvas to occupy the whole main window

root.mainloop()

Answer 2

You can set root.attributes to fullscreen.
The following example shows how to toggle from fullscreen to a sized window, and vice-versa, upon pressing the Escape key

import tkinter as tk

def toggle_fs(dummy=None):
    state = False if root.attributes('-fullscreen') else True
    root.attributes('-fullscreen', state)
    if not state:
        root.geometry('300x300+100+100')

root = tk.Tk()
tk.Canvas(root, bg='cyan').pack(expand=True, fill=tk.BOTH)
root.attributes('-fullscreen', True)

root.bind('<Escape>', toggle_fs)

root.mainloop()